Sterilizing apparatus.



F. C. PARKS.

.. sremuzme APPARATUS.

7 APPLICATION FILED OCT. 23' 1916.

2 SHEETS-SHEET I.

MIMI" Patented Aug. 21, 1917.

F.C.PARK&

STERILIZING APPARATUS.

APPLICATION FILED 001.23. 1916.

Patented Aug. 21, 1917.

2 SHEETSSHEET 2'- UNITED sT Tns rat n are.

IronnEsT o. PARKS, or PITTSBURGH, rnunsrtvanm, assrenon or en's-HALF To ormnrns c. GRAHAM, or oHIoAeo, rumors.

STERILIZING APPARATUS.

Specification of Letters Patent.

Patented Aug. 21, 191%.

Application filed October 23, 1916. Serial No. 127,181.

To all whom it may concern:

Pittsburgh, in the county of Allegheny and Eitate of Pennsylvania, have invented certain new and useful Improvements in Sterilizing Apparatus, of which the following is a specification.

This invention relates broadly to improvements in sterilizing apparatus, and refers particularly to an apparatus for sterilizing glasses, dishes or any other analogous ob ects.

@no object of this invention is to provide a sterilizing apparatus of the type set forth.

that will subject every part of the dish or object to the action of the sterilizing agent, and which in addition to sterilizingthe object will thoroughly dryit.

Another object of this invention is to provide a sterilizer of the character described which will have'a large capacity and thus be able to sterilize a great many objects and which will requirevery little attention, making its operating cost very small.

Further objects of this invention are the provision of a sterilizing apparatus which cess may be had to one of the drawers independent of the remaining drawers and the sterilizing chamber remaining in a closed position while placing dishes or objects in said drawers or while removing same therefrom.

Still further objects of this invention are to provide a device of the character set forth, which is simple in its construction and arrangement, strong, durable and efli-- went in its use and inexpensive to, manufacture. i

To the accomplishment of these and such other objects as may hereinafter appear, the -mvent1on consists of the novel construction,

combination and arrangement of parts herein specifically described, and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention.

In; the drawings, forming a portionof vthis specification and wherein like numerals of reference, designate corresponding parts throughout the several views:

Figure 1 represents a perspective view of the sterilizing apparatus in accordance with this invention.

Fig. 2 is a perspective View of the drawers embodied in this invention.

Fig. 3 is a vertical cross sectional view. of the drawer and the side walls of the body of the sterilizer, said side walls being broken away.

Fig. 4: is a fragmentary perspective view.

of the sterilizer showing the latching device for holding the drawers in closed position. Fig. 5 is a plan view of the bottom of the sterilizing chamber, having an electric heating unit mounted thereon. Referring more in detail to the drawings, 1 represents the body of the sterilizer, preferably rectangular in shape and constructed of sheet metal. The body 1- consists of the outer casing 2 and the inner lining 3,

having interposed therebetween the filler 4; of asbestos or any other suitable non-con- 'ductor of heat.

The body 1 is further provided with the openings 7 in the side walls 8 and 9 respectively. The openings 7, on the side wall 8 and those in the side wall 9, are positioned 1 parallel to each other, for the reception of the drawers 10, which extend transversely through the said openings 7 and through the sterilizing chamber 6.

As illustrated in Fig. 2, the drawers 10 are constructed to form the two sections 11 andf12, which are divided by 13;] Each of the drawer sections 11 and 12 is provided with an end portion 14, and is ofsufficient length to extend :entirely through the body 1 in openings 7 in the side wall s 8 and 9. It will thus be obvious that when one of the sections of the drawer is in the partition the closed position the other section of the said drawer will necessarily be in the open or extended position.

By referring more particularly to Fig. 3 of the drawings it will be seen that while section 11 of the drawer 10, is in the closed position and extending through the sterilizing chamber 6, the end portion 14 of the said section and the partition 13 will completely close the openings 7 in the side walls 8 and 9, thereby retaining the heat or sterilizing agent within the said chamber. While the objects in the drawer section 11 are being subjected to the sterilizing agent, the sterilized objects in the drawer section 12, which is in the open or extended position, may be removed therefrom, and other objects to be sterilized placed therein.

The end portions 14 and the partition 13 of the drawers 10 are made preferably of the same material as the body 1, and are provided with a filler 15 of the same material as is interposed between the outer casing 2 and the inner lining 3 of the body 1, to aid in the retention of the sterilizing agent (heat) within the sterilizing chamn j a .tlon together with the device WhlCl'l is now her .6. I

The sides 16, the endsl'? and the bottoms 18 of the drawer sections 11 and 12 are attached to the end portions 14 and to the I partition 13 by means of the bolts or screws 19 in such a manner that the said drawer may be taken apart'when it is desired to remove the same from the openings 7 in the body 1, for making repairs, etc.

In a sterilizer of the type embodied in this invention, the only time. that the sterilizing agent (heat) can escape from the sterilizing chamber 6, is during the operation of opening and closing one of the drawers 10. and as the said operation should be as easy and rapid as possible, the. said drawers may be provided with roller bearings (not shown) or their equivalent, if the sterilizer is of a large size and heavily constructed.

To allow the sterilizing agent to more thoroughly permeate the sterilizing chamher 6 and the objects contained therein, the sides 16 and the bottoms 18 of the drawer;

of the openings 7 in the walls 8 and 9 of the body 1, and in the door opening 27, are provided to engage the corresponding stepped contour 28 of the peripheries of the door 5, of the end portions 14 and of the partitions 13, of the drawers 10, for the purpose of more closely confining the heat in the sterilizing chamber 6. i

As the, sterilizing agent, used 1n connection with this sterilizer, is heat, the same may be generated by any means desirable, and while illustrating in Fig. 5, of the drawings, a heating device 29, consisting of an ordinary electric heating unit mounted upon the floor 30 of the sterilizing chamber 6, for the purpose of generating the heat, gas, steam, oil, etc., with appropriate fixtures and attachments, can readily be sub stituted.

From the foregoing description, taken in connection with the accompanying drawin s, the advantages of the construction and the method of operation will be readily apparent: to those skilled in the art to which invention appertains, and while describing the principle of operation of the invenconsidered to be the best embodiment thereof, it is to be understood that the device is merely illustrative as shown and that vari ous changes in the form, proportion and the minor details of construction may be resorted towithout departing from the principle or sacrificing anv of the advantages of the invention as defined in the appended claims.

'VVhat Iclaim'as new and desire to secure by Letters Patent is: I w

1. In a sterilizing apparatus comprising a body portion forming a sterilizing chamher, and a pluralitv-of drawers each consisting of two sections extending transversely through the said bodv portion and so arranged that when a section of 1he said drawers is in the closed position the other section thereof is in the open or extended position.

2. A sterilizing apparatus comprising a body portion, consisting of an outer casing, an inner lining and a 'filler of non-heat-conducting material interposed between the .said outer casing and the said inner lining a drawer, having two compartments and slidablv mounted, extending transversely through oppositely disposed openings in the walls of the said bodv portion, the combined length of the said two compartments beingvtwice that of the body portion, so that one of the said compartments is arranged exteriorly of thesaid body-portion, and certain walls of the body portion having an interfitting connection with certain walls of the drawer, substantially as described and set forth.

3. A sterilizing apparatus comprising a body portlon, consisting of an outer casing,

, an inner lining and a filler of non -heat-conducting material interposed between the said outer caslng and the said inner lining, a drawer, having two compartments, ex-

tending transversely through, and slidably mounted in oppositely disposed openings in the walls of the said body portion, a steriliz-' drawer from said oppositely disposed openings, and certain walls of the body portion having an interfitting connection with cer- 1 tain walls of the said drawer, substantially as described and for the purpose set forth.

In testimony whereof I afiix my signature in the presence of two witnesses.

FORREST C. PARKS.

' Witnesses:

JAs. R. SNYDER, JENNm JONEs. 

